- Notice of 4.9.2000, published on 7 of October https://www.anacom.pt/render.jsp?categoryId=214684
Upon determination of 3 August 2000, and subsequent to consulting the Directorate-General for Trade and Competition under the terms of Article 7 of Decree-Law no. 415/98 of 31 December, the following were declared as having significant market power:
1. Portugal Telecom, S.A., or the entity legally succeeding it as a concessionaire, in the domestic interconnection market, in the market for fixed telephone networks and/or fixed telephone services and in the leased lines market.
2. TMN - Telecomunicações Móveis Nacionais, S.A., and Telecel - Comunicações Pessoais, S.A., in the market for mobile telephone networks and/or mobile telephone services.